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Calibration Statistics Working Group

The main page of the CalStats WG is at https://iachec.org/calibration-statistics/

 

Library of background models/scripts/packages

 

InstrumentPackage/CodeDescriptionLinks/ResourcesReferences
Chandra/ACISmkacispbackA software to generate spectral models for Chandra ACIS particle-induced background, by Hiromasa Suzuki (UTokyo)https://github.com/hiromasasuzuki/mkacispback
Chandra/ACIS-I Continuum modeled as a combination of power-law and exponential, amplitudes changing along y direction; 11 fluorescent lines, six of which are spatially variablehttps://ui.adsabs.harvard.edu/abs/2014A%26A...566A..25B/abstract
NICERnicer_bkg_estimatorThe nicer_bkg_estimator tool implements the "space weather" method (Gendreau et al., in prep.) which uses environmental data to parse the background database. This tool uses a model of the magnetic cut-off rigidity as well as space weather data in the form of the planetary Kennziffer Index, or Kp index

https://heasarc.gsfc.nasa.gov/docs/nicer/tools/nicer_bkg_est_tools.html

Readme: https://heasarc.gsfc.nasa.gov/docs/nicer/tools/nicer_bkg_estimator_README.txt

NICERnibackgen3C50The nibackgen3C50 tool (Remillard et al.) makes use of a number of background proxies in the NICER data to define the basis states of the background database. 

https://heasarc.gsfc.nasa.gov/docs/nicer/tools/nicer_bkg_est_tools.html

Readme: https://heasarc.gsfc.nasa.gov/docs/nicer/tools/README_nibackgen3C50_v7b.txt

NuSTARnuskybgd

Broadband (3-160 keV) background with appropriate response. Produces background models for arbitrary source locations in FoV, and band-selected background images. Authored by Dan Wik, python-port by Qian Wang.

https://github.com/NuSTAR/nuskybgd-py
XMM/pn  https://ui.adsabs.harvard.edu/abs/2021ApJ...908...37M/abstract
  • Marelli, M., Molendi, S., Rossetti, M., Gastaldello, F., Salvetti, D., De Luca, A., Bartalucci, I., Kuhl, P., Esposito, P., Ghizzardi, S., and Tiengo, A., 2021, AJ 908, 37, Analysis of the Unconcentrated Background of the EPIC pn Camera on Board XMM-Newton, https://ui.adsabs.harvard.edu/abs/2021ApJ...908...37M/abstract
XMM/MOS  https://ui.adsabs.harvard.edu/abs/2008A%26A...478..575K/abstract
AstroSAT/LAXPC Accounts for latitudinal, longitudinal, and quasi-diurnal (84495 s) variations.https://arxiv.org/abs/2205.03136
  • Antia, H.M., Agrawal, P.C., Katoch, T., Manchanda, R.K., Mukerjee, K., and Shah, P., 2022, ApJS, accepted,

    Improved background model for the Large Area X-ray Proportional Counter (LAXPC) instrument on-board AstroSat, https://arxiv.org/abs/2205.03136

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